401 Unauthorized error while logging in Manager-App of Tomcat

Question

I am trying to log in to the Manager App in Tomcat 7.0.22 for Mac OS X 10.7. Here is the error I am getting: http://f.cl.ly/items/421q1K3f1i0X1H1M181v/so.tiff

Answer 1

Check your browser.

I was running tomcat locally on Windows, and trying to log in using Chrome. None of the suggestions above seemed to work. Finally on a whim, I tried Firefox and got the login prompt! I restarted Chrome and tried it again, and still nothing. It appears our network policy screws with Chrome - probably blocking the popup login dialog.